=======================================================Spill Release Procedures: USE PROPER PERSONAL PROTECTIVE EQUIPMENT. SWEEP UP OR ABSORB MATERIAL, THEN PLACE INTO A SUITABLE CLEAN, DRY, CLOSED CONTAINER FOR DISPOSAL.Neutralizing Agent: NOT PROVIDEDWaste Disposal Methods: DISPOSE OF IN A MANNER CONSISTENT WITH FEDERAL, STATE, AND LOCAL REGULATIONS.Handling And Storage Precautions: KEEP CONTAINER TIGHTLY CLOSED. DO NOT STORE NEAR COMBUSTIBLE MATERIALS. KEEP AWAY FROM FOOD AND DRINKING WATER. KEEP AWAY FROM STRONG ACIDS. KEEP AWAY FROM METALS. KEEP AWAY FROM REDUCING AGENTS. AVOI D CONTACT WITH CLOTHING AND OTHER COMBUSTIBLE MATERIALS.Other Precautions: DO NOT INGEST OR INHALE. DO NOT GET ON SKIN OR IN EYES. WASH THOROUGHLY AFTER HANDLING. USE WITH ADEQUATE VENTILATION.=======================================================

[TOP]Fire and Explosion Hazard Information

=======================================================Extinguishing Media: USE WATER SPRAY TO COOL FIRE-EXPOSED CONTAINERS. SUBSTANCE IS NONCOMBUSTIBLE; USE AGENT MOST APPROPRIATE TO EXTINGUISH SURROUNDING FIRE.Fire Fighting Procedures: AS IN ANY FIRE, WEAR A SELF-CONTAINED BREATHING APPARATUS IN PRESSURE-DEMAND, MSHA/NIOSH (APPROVED OR EQUIVALENT), AND FULL PROTECTIVE GEAR. MATERIAL WILL NOT BURN. OXIDIZER. GREATLY INCREASES THE BUR NING RATE OF COMBUSTIBLE MATERIALS.Unusual Fire/Explosion Hazard: NOT PROVIDED=======================================================

=======================================================Sara Title III Information: SECTION 302 (RQ): NONE OF THE CHEMICALS IN THIS MATERIAL HAVE AN RQ. SECTION 302 (TPQ): NONE OF THE CHEMICALS IN THIS PRODUCT HAVE A TPQ. SARA CODES CAS # 7553-56-2: ACUTE, CHRONIC, FLAMMABLE. S ECTION 313: NO CHEMICALS ARE REPORTABLE UNDER SECTION 313. CLEAN AIR ACT: THIS MATERIAL DOES NOT CONTAIN ANY HAZARDOUS AIR POLLUTANTS. THIS MATERIAL DOES NOT CONTAIN ANY CLASS 1 OZONE DEPLETORS. THI S MATERIAL DOES NOT CONTAIN ANY CLASS 2 OZONE DEPLETORS.Federal Regulatory Information: TSCA: CAS# 7553-56-2 IS LISTED ON THE TSCA INVENTORY. CLEAN WATER ACT: NONE OF THE CHEMICALS IN THIS PRODUCT ARE LISTED AS HAZARDOUS SUBSTANCES UNDER THE CWA. NONE OF THE CHEMICALS IN THIS PRODUCT ARE LISTED AS PRIORITY POLLUTANTS UNDER THE CWA. NONE OF THE CHEMICALS IN THIS PRODUCT ARE LISTED AS TOXIC POLLUTANTS UNDER THE CWA.OSHA: NONE OF THE CHEMICALS IN THIS PRODUCT ARE CONSIDERED HIGH LY HAZARDOUS BY OSHA.State Regulatory Information: CAS# 7553-56-2 CAN BE FOUND ON THE FOLLOWING STATE RIGHT TO KNOW LISTS: CALIFORNIA, NEW JERSEY, FLORIDA, PENNSYLVANIA, MINNESOTA, MASSACHUSETTS. CALIFORNIA NO SIGNIFICANT RISK LEVEL: NONE OF THE CHEM ICALS IN THIS PRODUCT ARE LISTED.=======================================================

=======================================================Product ID: 11400,IODINECage: 1B464Company Name: FISHER SCIENTIFIC CO. CHEMICAL MFG DIVStreet: 1 REAGENT LANECity: FAIRLAWN NJZipcode: 07410-2802Health Emergency Phone: 201-796-7100Label Required IND: YDate Of Label Review: 12/20/2000Status Code: AMFG Label NO: NOT PROVIDEDOriginationChronic Hazard IND: YEye Protection IND: YESSkin Protection IND: YESSignal Word: DANGERRespiratory Protection IND: NOHealth Hazard: ModerateContact Hazard: SevereFire Hazard: NoneReactivity Hazard: NoneHazard And Precautions: TARGET ORGANS: NONE. DANGER! MAY CAUSE ALLERGIC SKIN REACTION. CORROSIVE. CAUSES EYE AND SKIN BURNS. MAY CAUSE SEVERE RESPIRATORY AND DIGESTIVE TRACT IRRITATION WITH POSSIBLE BURNS. FIRST AID: EYES: I MMEDIATELY FLUSH WITH WATER FOR AT LEAST15 MINUTES., LIFTING UPPER AND LOWER EYELIDS. GET MEDICAL AID IMMEDIATELY. SKIN: GET MEDICAL AID IMMEDIATELY. RINSE AREA WITH WATER FOR 15 MINUTES. INGESTION: D O NOT INDUCE VOMITING. IF VICTIM IS CONSCIOUS, GIVE 2-4 CUPFULS OF MILK/WATER. GET MEDICAL AID IMMEDIATELY. INHALATION: GET MEDICAL AID. REMOVE TO FRESH AIR. IF NOT BREATHING, GIVE ARTIFICIAL RESPIRAT ION. IF BREATHING IS DIFFICULT, GIVE OXYGEN.=======================================================Disclaimer (provided with this information by the compiling agencies): This information is formulated for use by elements of the Department of Defense. The United States of America in no manner whatsoever expressly or implied warrants, states, or intends said information to have any application, use or viability by or to any person or persons outside the Department of Defense nor any person or persons contracting with any instrumentality of the United States of America and disclaims all liability for such use. Any person utilizing this instruction who is not a military or civilian employee of the United States of America should seek competent professional advice to verify and assume responsibility for the suitability of this information to their particular situation regardless of similarity to a corresponding Department of Defense or other government situation.

« Last Edit: April 26, 2004, 12:27:59 PM by hmx9123 »

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Most Common Suggestions I Make on the Forums.1. Always start by writing a balanced chemical equation.2. Don't confuse thermodynamic stability with chemical reactivity.3. Forum Supports LaTex

Corvettaholic

According to that MSDS sheet, iodine is solid at room temperature? Since unstable stuff would encompass solids that turn into two stable gases.. iodine isn't naturally a gas. But I suppose with the heat of a boom it would be a gas really briefly, then become solid again.

Corvettaholic

Ah, good point. There will be plenty of heat at first, but its going to diffuse really quick, maybe too quick to see, but at some point the laws are followed. Love that word, thermodynamics. Always trips me up

Iodine is most definitely a solid at room temperature. However, it easily sublimes into a beautiful violet colored vapor at normal atmospheric pressure. If you take some Iodine crystals and just put them out in the open air, over time they will sublime into iodine vapor and your crystals will be no more. All the halogens tend to easily form vapors if they aren't already gasses at room temperature. (Bromine especially. That's what makes it so difficult to contain. The liquid will quickly form a vapor and fill up any container it's in, then proceed to eat through said container). If you heat up solid iodine, you'll quickly see it turn into the gaseous form. It's in this form that it's the most dangerous as it's easily absorbed into you lungs and mucus membranes. With bromine you'll at least know right away that you've got some on you as it will quickly start burning. With iodine, you may not realize that you had some on your skin for a good while until you see a big red spot form where the crystals had been lying.

[edited to stability thread]

« Last Edit: April 26, 2004, 12:28:43 PM by hmx9123 »

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"A real fart is beefy, has a density greater than or equal to the air surrounding it, consists

Corvettaholic

Do all halogens behave this way? And all halogens are caustic? Pretend I had some iodine crystals, I should be able to store them in a glass jar (with a good lid), and if they turn into gas they probably won't eat through the sides? Or I could always overpressurize the jar and they definantly shouldn't sublime.

Iodine won't eat the glass jar, but it might eat the lid. Also, it will sublime through the lid's fitting to the glass, although it might not be that quick. Unless you flame seal it in glass, I have yet to see a fitting that is tight enough to keep iodine in. It sublimes through everything, including vacuum grease on a ground glass joint (surprisingly fast, too). It leaves stains, but they sublime away, too. In a closed system, any difference in temperature or concentration may promote the sublimation of the crystals around the inside of the flask/ampule/whatever. Not a big deal if it's sealed.

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Corvettaholic

I assume jdurg has some iodine, given his element collection. From reading the MSDS sheet, sounds like its bad for you, and given that it sublimes... not good to play with. So if I want some, pretty much get an ampoule and just keep it sealed for collection sake. Now doesn't lye contain a lot of iodine in it? What bonds to it to keep it nice and inside the jar?

Corvettaholic

Oh, never mind then. What is iodine used for besides water purification tabs anyways? And speaking of those things, since iodine is bad for you, what kind of concentration is in those things and why do they work?

Iodine is used as a sterilizer for medical stuff. You can buy medical iodine in plastic bottles, its about 2% iodine and 3% iodine salts. It works because its so reactive that even in small amounts its still effective for what they use it for.

When looking at MSDS sheets, remember one thing; they exaggerate for safety's sake. If you've ever read the MSDS for water, you'd be kind of shocked at how dangerous it makes it sound. Of all the halogens, Iodine is the least reactive/dangerous. My ounce-and-a-half of Iodine is contained within a fairly small amber-glass bottle with a Teflon-cone screw top cap with Teflon tape wrapped around the threads. The Iodine has been safely secured in there for about three months now without any odor or visible leakage coming from it. (Unlike my bromine which has a mild bromine odor coming out of the bottle). If you drop a crystal of Iodine on your skin and you promptly remove it and wash the area, there will be no damage. It's only if you forget to remove it that it will begin to damage your flesh. (Bromine, on the other hand, will immediately begin to eat away at your skin. It's a really nasty substance and I'm thinking about taking what I have and heat sealing it into a very large ampoule to compensate for pressure changes).

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"A real fart is beefy, has a density greater than or equal to the air surrounding it, consists